Hiram emery fuller



(No Model.)-

' V 2 Sheets-Sheet 1. H. E. FULLER.

MACHINE FOR ROLLING NAILS.

Patented Feb. 5, 1889.

N. PETERS, Phma-mho n her, Wnhlnglcn, 0. 0.

(No Model.)

2 Sheets-Sheet 2.

H. B. FULLER.

MACHINE FOR ROLLING NAILS.

Patented Feb. 5, 1889.

mmwex N. PETERS. Phnlo-Lllhugraphur, Wnshinghin, DC.

NITED IIIRAM EMERY FULLER, OF LONDON, ENGLAND.

MACHINE FOR RDLLING NAILS.

SPECIFICATION forming part of Letters Patent No. 397,460, dated February 5, 1889.

Application filed January 5, 1888. Serial No. 259,910. (No model.) Patented in England July 5, 1887, No. 9,518; in France December 30, 1887, No. 187,894, and in Belgium December 30, 1887, No. 80,115.

To all whom, it may concern:

Be it known that I, HIRAM Ennnv FULLER, a citizen of the United States, residing at Leadenhall Buildings, in the city of London, England, have invented a new and useful Improved Machine for Rolling Nails and such like articles, (for which I have obtained a pat ent in France, dated December 30, 1887, N 0. 187,894; Belgium, dated December 30, 1887, No. 80,115, and have made application forpatent in Great Britain, which patent, when granted, will bear date .111] y 5,1887, l\'o. 9,513,) of which the following is a specification.

This invention relates to an improved machine for rolling nails and such like articles from continuous lengths of wire or rod by passing same between rollers having on their peripheries die-recesses suited to the form of the nails. For this purpose I employ two or more pairs of rollers, the axes of those of a pair bein parallel to each other, butat right angles to the axes of those of the next pair, so that the wire or rod being squeezed in the one direction in passing between the first pair is squeezed in the trai isverse direction in passing between the next pair, and so on.

I make the rollers of considerable diameter at their middle's, ta iiering down to small diameter at each end,.and thus I am enabled to bring the bite of each lower pair of rollers nearly up to the bite of the pair of rollers above it, so that the nail is seized by the dies in each pair of rollers before it has full y left the dies of the pair of rollers immediately above it.

Instead of engraving or otherwise forming the die-recesses in the rollers themselves,l form them in separate pieces, which are keyed or otherwise fixed in beds formed in the circumferences of the rollers, so that each die can be tempered, fixed, removed, or replaced independently of the others on the same roller.

In the accompanying drawin I have shown a machine in its simplest form, in which only two pairs of rollers are used.

Figure 1 represents a plan with the feeding-mouth removed. Fig. shows a side elevation of the machine. Figs. 3 and-l are sectional elevations of the machine taken at right angles to one another, showing, respecti vel y, one of the upper rollers and one of the lower rollers in section. Fig. 5 shows to an enlarged scale the way in which the dies are secured in the rollers, and Fig. 6 shows a plan of: the feeding-mouth.

On the bed-plate ')r framing of the machine are mounted two pairs of rollers, R R and R R". The axes A A of the upper pair of rollers, RR revolve in bearings 13 B parallel with one another, while the axes A A of the lower pair of rollers, R"R,1'e\'olvc in bear ing-s B B also parallel to one another, but at right angles to the axes of the upper pair of rollers, and at sucha distance below them that the point where the peripheries of the lower pair of rollers nearly meet is brought immediately under and in close proximity to the point where the peripheries of the upper pair of rollers nearly meet.

The caps of the bearings B '3 l3 3" are oblique, so that all the wear that takes place when taken up by screwing the caps down keeps the centers of each pair of rollers in the same relative position and the distance between the axes of the two pairs of rollers constant.

Above the upper pair of rollers and in line with the intersection of the planes of the four rollers are mounted two small grooved rollers, 00 between brackets I P which support a feeding-mouth, D, through which the wire or rod is fed into the rollers. The axis of the roller is fitted into slots in the brackets, so that it can be adjusted nearer to or farther from that of m, by means of the set-screws e, in order to suit varying gages of wire.

The several rollers are constructed with considerable width at their centers tapering down to a small width at their peripheries, in which are formed deep channels. In these channels are arranged a series of movable dieblocks, (Z d, preferably arranged in sections corresponding with the length of the article to be produced. These die-blocks are fitted into the rollers, so as to form a true rolling circle, and each pair is arranged in close rolling contact with one and another. They are all made with grooves Z formed at the lower part of one side, into which inclined setscrews 3 are screwed to keep the die-blocks IOO firmly down in their respective places. Suitable cotters are inserted in each roller to prevent the slipping of the dies in the channels.

The die-blocks of the upper pair of rollers are each milled out at their peripheries to the required configuration for forming a primary blank of the nail or article to be produced. The die-blocks of the lower pair of rollers are also milled out to a configuration suited to the finished nail or other article, and are made of greater length than the dies of the upper rolls to allow for the drawing out and pointing of the blanks.

The two pairs of rollers are rotated atauniform speed by worm-wheels in 10 w w, keyed on the axes A A A A, and driven by the worms '6 t t t on the shafts 7i ]L2 h 7r, the motion. of the shafts 7t 71- for the upper pair of rollers being derived from the shafts h it by means of skew-wheels K K and the shafts 7U h being in their turn driven by the driving-pulleyV, at the side of which is mounted a loose pulley, \V.

In order that the peripheral position of the dies on the upper pair of rollers, R R may be accurately adjusted to each other, I connect the two shafts 7L 7L2 together by means of flanged couplings f f, in one of which couplings are formed elongated bolt-holes, so that the one shaft may be moved round until the true relative angular position of the periph eral dies of the rollers is arrived at, whereupon the nuts are screwed up so as to hold the two shafts firm in their relative positions. Similarly the peripheral positions of the dies on the lower pair of rollers, R R, are adjustable by means of the flanged couplings ff. The skew-wheel K is made adjustable on its shaft by means ,of the set-screws Z, so that the relative positions of the shafts 7i 7L2 and 7L3 7r may be altered, and through them the relative position of the dies of the upper pair of rollers, R R may be adjusted to that of the dies of the lower pair of rollers, R" R, so that the article being rolled, on being released from the first dies, is at the right moment gripped by the finishing-dies of the second pair of rollers.

The operation of the machine is as follows: A continuous length of wire is fed from a reel above through the feeding mouth D, where it is seized by the first pair of rollers, R R In rolling through the dies of these rollers it becomes squeezed to their shape and is partially or wholly severed at intervals suited to the length of the nail, rivet, or other article to be made. These partially-formed articles or primary blanks before passing out of the grip of the upper pair of rollers are seized by the dies of the second or lower pair of rollers, R R, and in passing through them are squeezed in a direction transverse to that in which they were squeezed in the first pair of rollers, and are thus Formed into the finished nails, rivets, or other articles, and drop into the hole Il', made in the framework of the machine, whence they can be collected in any suitable manner.

The conical construction of the rolls is important, in that it brings the bite of the lower pair of rolls up to or nearly to the bite of the upper pair of rolls, so that the dies of the lower rolls seize the nail-blanks directly from the upper rolls before the blanks have left the dies in the latter, thereby avoiding the use of a guide-tube, as in Letters Patent No. 62,684, which I hereby disclaim.

The method herein disclosed of making the nails or similar articles from a continuous wire or rod constitutes the subject-matter of my application, filed of even date herewith, Serial N 259,909.

Having thus described the nature of this invention and the best means I know for carrying the same into practical effect,I claim- In a nail-rolling machine, the combination of two pairs of die-rollers of conical form, so arranged that the axes of the one pair are in a plane a little below the plane of the others and at right angles to them, all the rolls revolving in a vertical plane, and each having a series of dies in their greatest diameter and arranged as described, whereby the bite of the lower rolls is near the bite of the upper rolls to seize the blanks directly therefrom before the blanks have left the dies of the upper rolls, substantially as and for the purpose herein set forth.

In testimony whereof I have signed my name to this specificatitm, in the presence of two subscribing witnesses, this 21st day of December, A. l). 1887.

ll. EMERY FULLER.

Witnesses: 7

OLIVER IMRAY, Patent Age-72.1, 28 Southampton Buildings, London, W. C.

.ToHN P. M. MILLARD, Clerk to 111685119. Abel &' Imrcry, Consul/mg Engineers &' Patent Agents, 28 SOUNIGOHQJZOIL Buildings, London, W. C. 

